Results 41 to 50 of about 897,659 (282)

Measurement of Drag Reduction in Dilute Polymer Solution Using Triboelectric Effect

open access: yesApplied Rheology, 2018
In this paper, we present a novel method we have developed for measuring the drag reduction in a dilute polymer solution, based on the triboelectricity phenomenon.
Nsom Blaise, Latrache Noureddine
doaj   +1 more source

Analysis of Drag Reduction Methods and Mechanisms of Turbulent

open access: yesApplied Bionics and Biomechanics, 2017
Turbulent flow is a difficult issue in fluid dynamics, the rules of which have not been totally revealed up to now. Fluid in turbulent state will result in a greater frictional force, which must consume great energy.
Gu Yunqing   +4 more
doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Experimental Study on Drag Reduction Characteristics of Bionic Earthworm Self-Lubrication Surface

open access: yesApplied Bionics and Biomechanics, 2019
In the present study, a coupling bionic method is used to study the drag reduction characteristics of corrugated surface with lubrication. In order to test the drag reduction features, bionic specimen was prepared inspired by earthworm surface and ...
Guomin Liu   +4 more
doaj   +1 more source

Effects of different working parameters on the turbulent drag reduction regulated by annular plasma synthetic jet actuators

open access: yesPhysics of Plasmas, 2023
Reduction of turbulent drag force is one of important works in the design of airplanes and hypersonic aircrafts. The annular plasma synthetic jet (APSJ) has become an interesting and popular flow control method in reducing the drag of turbulent boundary ...
Minghao Yu   +3 more
semanticscholar   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang   +10 more
wiley   +1 more source

Experimental Investigation on Drag Reduction Characteristics of Riblets Considering the Flow Environment of Fuselage

open access: yesAerospace
The riblets surface is a passive turbulence drag reduction technology that holds promising application prospects in drag reduction for large aircraft. Currently, most research on the drag reduction characteristics of riblets is limited to medium and low ...
Qiyue Ma   +6 more
doaj   +1 more source

PASTA‐ELN: Simplifying Research Data Management for Experimental Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Research data management faces ongoing hurdles as many ELNs remain complex and restrictive. PASTA‐ELN offers an open‐source, cross‐platform solution that prioritizes simplicity, offline access, and user control. Its in tuitive folder structure, modular Python add‐ons, and open formats enable seamless documentation, FAIR data practices, and easy ...
S. Brinckmann, G. Winkens, R. Schwaiger
wiley   +1 more source

The Roles of Riblet and Superhydrophobic Surfaces in Energy Saving Using a Spatial Correlation Analysis

open access: yesNanomaterials, 2023
Riblet and superhydrophobic surfaces are two typical passive control technologies used to save energy. In this study, three microstructured samples—a micro-riblet surface (RS), a superhydrophobic surface (SHS), and a novel composite surface of micro ...
Chunye Liu   +4 more
doaj   +1 more source

Global drag reduction and local flow statistics in Taylor–Couette turbulence with dilute polymer additives

open access: yesJournal of Fluid Mechanics
We present an experimental study on the drag reduction by polymers in Taylor–Couette turbulence at Reynolds numbers ($Re$) ranging from $4\times 10^3$ to $2.5\times 10^4$.
Yi-Bao Zhang   +4 more
semanticscholar   +1 more source

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